降低炼铜弃渣含铜技术的应用研究.doc

doi：.1007-
降低炼铜弃渣含铜技术的应用研究
边瑞民，王智，魏传兵，赵宝军
（东营方圆有色金属有限公司，山东东营 257091）
摘要：采用新型贫化炉（ m× m），在熔炼温度分别是1 200 ℃、1 250 ℃，沉降时间分别为30 min、60 min，Fe/SiO2=~，考察了熔剂、硫化剂和还原剂等对渣贫化效果的影响。结果表明，在铜原始熔炼渣中加入SiO2、B2O3或CaF2时，可增加冰铜的沉降分离效果。而FeS的加入对铜的回收几乎没有影响，但它能够和氧反应产生工艺所需热量，还能减少尖晶石相和渣中铜的溶解。在优化的综合条件下，，%。
关键词：贫化炉；熔剂；硫化剂；还原剂；渣含铜
中图分类号：TF811 文献标志码：A 文章编号：1007-7545（2018）04-0000-00
Application Study on Technology of Reducing Copper Content in Discarded Slag
BIAN Rui-min, WANG Zhi, WEI Chuan-bing, ZHAO Bao-jun
(Dongying Fangyuan Nonferrous Metals Co., Ltd, Dongying 257091, Shandong, China)
Abstract：Effects of flux, vulcanizing agent and reductant on slag dilution in new-type Dilution Furnace were investigated under the conditions including smelting temperature of 1 200 ℃ and 1 250 ℃, settling time of 30 min and 60 min, and Fe/SiO2=~. The results show that addition of SiO2, B2O3 or CaF2 into original copper smelting slag can improve settling separation effect. Though no effect on copper recovery, addition of FeS can provide heat required by reaction with oxygen and reduce copper dissolution in spinel phase and slag. Copper content in discarded slag can be controlled at % under the optimum comprehensive conditions with ratio of oxygen to natural gas of .
Key words：Dilution Furnace; flux; vulcanizing agent; reductant;